package com.array.www.service.impl;

import cn.hutool.core.util.IdUtil;
import com.array.www.service.PaymentService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @Created by Mr.Array
 * @Description TODO
 * @Date 2021/5/15 11:01 上午
 */
@Service
public class PaymentServiceImpl implements PaymentService {


    @Override
    public String paymentInfo_OK(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "paymentInfo_OK, id:" + id;
    }

    /**
     * http://localhost:8001/payment/hystrix/timeout/31
     *
     * @param id
     * @return
     * @HystrixCommand报异常后如何处理： 一旦调用服务方法失败并抛出了错误信息后，
     * 会自动调用@HystrixCommand标注好的fallbackMethod调用类中的指定方法
     */
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
            //设置这个线程的超时时间是3s，3s内是正常的业务逻辑，超过3s调用fallbackMethod指定的方法进行处理
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
    })
    @Override
    public String paymentInfo_Timeout(Integer id) {
        int age = 10/0;
        int number = 3;
        try {
            TimeUnit.SECONDS.sleep(number);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() +
                "paymentInfo_Timeout, id:" + id + "\t 耗时：" + number + "秒";
    }
    public String paymentInfo_TimeOutHandler(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "   系统繁忙，请稍后再试,id：" + id + "\t" + "o(╥﹏╥)o";
    }

    @HystrixCommand(fallbackMethod = "paymentCircutiBreaker_fallback", commandProperties = {
            //是否打开断路器
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
            // 请求次数
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),
            // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),
            // 失败率达到多少跳闸
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")
    })
    @Override
    public String paymentCircutiBreaker(@PathVariable("id") Integer id){
        if (id<0) {
            throw new RuntimeException("****** id不能为负数------" + id);
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t 调用成功，流水号是：" + serialNumber;
    }

    public String paymentCircutiBreaker_fallback(@PathVariable("id") Integer id) {
        return "id 不能为负数！！！稍后再试--- id----"+ id;
    }


}
